Hide face finally in bubbles (7)
I believe the answer is:
leather
'hide' is the definition.
(thesaurus)
'finally in bubbles' is the wordplay.
'finally' becomes 'e' (I can't explain this - if you can you should give a lot more credence to this answer).
'in' is an insertion indicator.
'bubbles' becomes 'lather' (I've seen this before).
'e' inserted into 'lather' is 'LEATHER'.
'face' is the link.
(Other definitions for leather that I've seen before include "polish" , "Polishing cloth" , "Dressed hide" , "kid, say" , "durable material" .)